Fluid meter



D. H. M GOGY July 16, 1935.

FLUID METER 5 Sheets-Sheet 1 Filed Mi-dh 27, 1933 y l935- D. H. McGOGY2,008,623

FLUID METER I Filed March 27-, 1933 5 Sheets-Sheet 2 July 16, 1935. I b.H. MOGOGY- I 2,003,623

FLUID METER Filed' March 27, 1933 5 Sheets-Sheet 3 July 16, 1935. D,McGOGY 2,008,623

FLUID METER Filed March 27, 1953 5 Sheets-Sheet 4 July 16, 1935. x D. H.M GOGY FLUID METER Filed March 27, 1953 5 Sheets-Sheet 5 Patented July16, 1935 I 2,008,623

UNITED STATES PATENT OFFICE FLUID METER Donald H. McGogy, McMinnville,Oreg.

Application March 2'7, 1933, Serial No. 663,068 '1 Claims. (01. 74-50)This invention relates to an improved fluid of the meter and the crankpin of the crank shaft meter and is of the general character shown inemployed for driving the counter mechanism, my prior Patents Nos.1,694,747, dated December i ur 7 is a p an vi w of the va v a 1928,,814,7 5, dated July 14, 1931, and Figure 8 is a detail section on theline 8-8 of 1,893,429, dated January 3, 1933. Figure 4.

The invention seeks, among other objects, to In carrying the inventioninto effect, I provide a meter embodying pistons driven by the p a m erbo y "I m wh h dia e q fluid being measuredand a crank shaft foroprantly spa d y d th pp s ly disp s crating a counter or registeringmechanism and cylinders of One p being indicated a H and 10'- wherein'controlled slack'motion may be introt e oppositely disposed cylinders ofthe Other pair 10 duced in the connection between the pistons and beingdi ate at AS p ula y e in the crank pin of said shaft for varying thethrow Figure t a 0f h P Of Cylinders of the pistons and, on q tl varyingt intersect the axes of the pair of cylinders II, the volume f th tcylinders 12 being thus arranged closer to each 15 The invention seeks,asafurther object, to pro,-. other for correspondingly reducing theoutside 15 vid a novel means for introducing t Slack dimensions of thedevice as a whole, At their motion in the connection between the pistonsand inner ends, the cylinders all imo a central the crank pin andwherein such means will not chamber Provided Within the body to, and

, only be sensitive in adjustment but also accurate entering the chamberthrough the upper side of '0 so th t th meter may be t t meaty. the bodyis a passage I4 surrounding the upper Another object of the invention isto provide it end Of which is an annular Valve Seat meter wherein theinlet and outlet will both be The cylinders H and are preferablyequipped located m the meter head to thus provide a well with liners l6,and closing the cylinders, at their balanced device outer ends, are endcaps ll bolted or otherwise A further object of the invention in thiscon- 9 3 said cylinderF- These? caps 25 nection is t provide a devicewherein the body vided axially of the cylinders with bearings It? of tmeter may be readily detached f the closed at their outer ends withbosses I9 on the head so that, when the head is once connected end capsand leading from interior of a in a pipe line, the body of the meter maybe bosses are passages 20 opening through the inconnected from the headto permit of inspection ner faces of the end caps so as m obviate the 30or repair without the necessity of disturbing the entrapping of liquidWithin bosses- Fixedline, within the bearings 98 are bushings 2|.

And the invention seeks, as a still further object, Formed through ithickfmed upper wall of the to provide a meter which, as compared withmy body to cnimumcate wlth the ends of prior devices, will be morecompact the pair of cylinders II are, as particularly seen 35 Other andincidental objects, not specifically m Flguie a of opposltely dlsposedPassages mentioned in the foregoing, will be apparent dur- 22 .opemngthrough the Valve Seat mat dlametrtc ing the course of the followingdescription. mums and arranged fight ang1es.t t In the accompanyingdrawings forming part of 9 pa ssages.zz as partlcularty Seen m Figure 4this e ifi ati IS a like pair of oppositely disposed passages 23 40Figure 1 is a vertical sectional View through my communicating with theouter ends of the pair of improved meter cylinders l2 and openingthrough the valve seat l5 at points equally spaced with respect to theFigure 2 is a horizontal section on the line 22 passages 22. As Shown inFigure 1 the end caps of Figure 1 5 I! are provided at the lower ends ofall of the a hmmntal seem the line passages with ducts 24 to facilitatethe free flow gure of liquid into and out of the cylinders throughFigure 4 is fragmentary yertical section on the passages. Formed throughthe upper thickthe line of Figure bemg on an enlarged ened wall of thebody ID, at the angles between scale, the pairs of cylinders, asparticularly shown in I Figure 5 is a detail section on the lme 5-5 ofFigures 3 and 5, are discharge passages 25 com- Figure 3, municatingwith the central chamber [3 of the Figure 6 is an enlarged detailsection particubody. larly showing the roller employed for introduc-Slidable in the pair of cylinders H, as paras in: slack motion betweenthe yokes of the pistons ticularly shown in Figure 2, are pistons 26rigid- 1y coupled by a connecting rod 21 and slidable in the pair ofcylinders |2 are pistons 28 rigidly coupled by a connecting rod 29.Formed on the connecting rods 21 and 29 are shoulders 38 from whichextend tail rods 3| slidable in the bushings 2| of the bearings l8 forsupporting and guiding the pistons in their sliding movement within thecylinders. The pistons are all alike and comprise end plates which aredetachably screwed to the shoulders 38 of the connecting rods and carryleathers 32. Overlying the leathers are clamping rings 33 secured to theend plates of the pistons by screws 34. The outer margins of theleathers are free to contact the cylinder liners l6, and formed in therings 33 are annular channels 35 in which is freely disposed a helicalcoiled expansion ring 36 holding said margins of the leathers inengagement with said liners. Midway between its ends, the connecting rod21 is provided with a transverse yoke 31 and formed on the connectingrod 29, at right angles to the yoke 31, is a like yoke 38. Asparticularly brought out in Figure 6, the slots of these yokes areprovided with downwardly diverging inclined side Walls.

Arranged within the passage l4, as particularly seen in Figures 1 and 4,is a spider 39 which supports a vertically disposed bearing 48 axiallyof the body I0 and, as will be noted, this bearing is elongated toextend downwardly a considerable distance within the central chamber l3of the body. Fitting within the hearing, at its upper end, is an endthrust bushing 4| while within the lower end of the bearing is arrangeda bushing 42 and journaled through said bushings is a shaft 43.Surrounding the upper end portion of the shaft to rest against thebushing 4| is a collar 44 detachably connected to the shaft by a pin 45.As shown in detail in Figure 8, this collar is externally squared and,as will be appreciated, the collar will coact with the bushing 4| forsustaining any downward thrust upon the shaft. Fixed to the lower end ofthe shaft is a crank 46 which carries at its free end a depending crankpin 41 projecting through the yokes 31 and 38 of the connecting rods 27and 29.

Resting flat upon the valve seat I5 is an annular rotatable controlvalve 48. As best seen in Figures 4 and 7, this valve is providedcentrally With a, spider 49 which overlies the passage |4 through theupper thickened wall of the body I0 and is of a diameter correspondingto the diameter of said passage. The spider is provided with a. hub 58which is squared to removably fit over the collar 44 so that the valveis thus connected to the shaft 43 to be rotated thereby. Rising from thevalve is an annular eccentric flange 5| and formed. through the valve,at one side thereof externally of said flange, is an external port 52,while, at its opposite side, the valve is provided Within the flangewith an internal port 53.

At its upper end, the shaft 43 is provided with an axial stud 54 andmounted upon the upper end portion of the shaft is a spider 55 having ahub 58 fitting the shaft and very slightly loose thereon. The spider 55carries a pistonincluding a head 51 which fits over the stud 54 to restupon the spider, and formed in the periphery of the head is an annularchannel 58 adjacent which is a depending flange 59. Overlying thechannel is a leather 60 secured by a clamping ring 6| screwed upon theflange 59, and disposed within the channel 58 is a helical coiledexpansion ring 62 pressing the free margin of the leather 60 intocontact with the flange 5| of the valve 48. A

tight joint is thus provided between the piston and the valve and thepiston will rotate with the valve. Fitting the stud 54 to rest upon thepiston head 51 is a pinion 83 connected with the stud by a pin 84 andsurrounding the hub of the pinion is a split removable collar 85 holdingthe pin against endwise displacement. Screwed upon the upper end of thestud is a nut 86 securing the parts in assembled relation. 8

- Fitting the body H1 at its upper side is a removablehead 61 which, asseen in Figure 3, is preferably bolted to the body. This head, asparticularly seen in Figure 4, is provided with an internal dome-shapedchamber 88 which houses the valve 48 and associated parts, and formed onthe head to surround saidchamber is a manifold 89 providing a passage10. Formed through the bottom wall of the head, at the comers thereof,as particularly seen in Figure 3, are ports I l, which, as brought outin Figure 5, register with the passages 25. These ports thus establishcommunication between the central chamber |3 of the body and themanifold passage 18 of the head. Formed on the head, at one sidethereof, to extend through the manifold 89 into the chamber 68, as seenin Figure 3, is an inlet 12 and extending from the head, at its oppositeside, is a diametrically disposed outlet 13 communicating with thepassage I0 of the manifold.

Rising from the head are spaced flanges 14 to accommodate a suitablecounter or registering mechanism and journaled through the head, betweensaid fianges, is a shaft 15 for driving said mechanism. Surrounding thelower end portion of the shaft is a gland l6 closed by a gland nut 11,and fixed upon the lower terminal of the shaft is a pinion l8 meshingwith the pinion 83 so that as the shaft 43 is rotated, the shaft 15 willbe turned thereby for actuating the counter or registering mechanism. Atone side of the gland 16 the head is formed with an internal tubularboss 19 opening through the manifold 89 at the exterior of the head. Atits inner end portion, this boss provides a duct communicating with thegland 16 while, at the outer end portion of the boss is an enlargedchamber 8|. The gland 76 as well as the duct 88 is filled with asuitable lubricating packing, and slidablyfitting in said duct forfeeding the packing into the gland is a plunger 82 provided at its outerend I with a head 83 accommodated in the chamber 8|. Closing the chamberat its outer end is a plug 84 and interposed between the plug and thehead 83 of the plunger is a spring urging the plunger forwardly to acton the packing. Thus, the shaft 15 will be effectively lubricated at alltimes.

Closing the central chamber |3 at the lower side of the body is aconcavo-convex bottom plate 86 provided centrally with an upstandingboss 81 recessed at its lower end to provide a, chamber 88, and normallyclosing said chamber is a hollow plug 89. The plate 86 is provided withan adjacent lug 90 and normally connecting the plug with said lug is aseal 9| for preventing unauthorized removal of the plug.

Extending through the boss 81, as particularly shown in Figure 6, is avertically disposed adjusting screw 92 which is axially alined with theshaft 43. The lower end of this screw is housed within the chamber 88and'normally concealed by the plug 89 while, near-its upper end, thescrew carries a stop pin 93 for limiting its downward movement. Theupper end portion of the screw 92 carries a clamping plate 94 with whichthe support the bearing roller upon to coact with the yokes 31 isdirected to the fact that the lowermost disk screw has't hreadedengagement and extending freely tmtuga the boss 81 but threaded throughthe plate isa'clamping screw 95 the head of which is housed'within thechamber 88. Thus, as'will be seen, by removing the plug 89 and looseningthe screw9 5, the screw 92 may be adjusted either upwardly or downwardlywhen, by tightening the screw 95, the plate 94 may be canted for lockingthe screw 92 in adjusted position.

Supported by the screw 92 is a bearing roller for introducing slackmotion between the crank pin 41 of the shaft 43 and the yokes 31 and 38of the connecting rods 21 and 29. As particularly illustrated in Figure6, this roller includes a sleeve 96 which rotatably fits the pin 41 andis provided at its upper end with a flange 91. Rotatably fittingaboutthe sleeve are a number of metal roller disks 98 and spacing the disksapart are washers 99. The lowermost disk is provided with a dependingcollar, and extending through said collar and through the sleeve 96 areone or more fastening elements I securing the parts in assembledrelation. As will be observed, the disks are of graduated diameterincreasing from the uppermost disk to the lowermost disk and, as is tobe particularly noted, this lowermost disk rests at its periphery uponthe upper end of the adjusting screw 92. The screw will thus the crankpin 41 of the roller is of the same radius as the crank 46.Consequently, the lowermost disk will, as the crank pin 41 revolvesabout the axis of the shaft 43, remain constantly engaged with the upperend of the screw 92 so that said screw will, at all times, properlysupport the bearing roller. The disks 98 of the bearing roller are allbeveled at their peripheries to conform to the inclination of the wallsof the slots of the yokes 31 and 38 and, as the disks are mountedforindependent rotation on the sleeve 96, the disks engaged with theyoke 31 may turn in one direction while those of the disks engagedwiththe yoke 38 may turn in the opposite direction without interfering withthe former disks.

Assuming the parts to be in the position shown in Figure 1, it will beseen that liquid entering the inlet 12 will flow through the port 52 ofthe valve 48 and thence downwardly through the passage 22 at the left toenter behind the piston 26 at the left for driving both of the pistons26 to the right. Liquid behind the piston 26 at the right will,accordingly, be forced out through the passage 22 at the right andthrough the port 53 of the valve to enter the pasage l4 whence theliquid will flow into the central chamber l3 of the meter. From thischamber l3, the liquid will then be forced upwardly through thedischarge passages 25 to enter the manifold passage 19 of the head 61through the ports 1!. From the passage 10, the liquid will then flow outthrough the outlet 13. Movement of the pistons 26 to the right will, aswill be presently described,

rotate the valve 48 to bring the-ports thereof in register with thepassages 23, whenthe fluid will act on one-of the pistons 28. As will bereadily perceived, the operation is such that the valve will function toadmit liquid behind one piston of each pair, progressively, and at thesame time permit the expulsion of liquid from behind the.

other piston of each pair, progressively, into the central chamber l3 ofthe meter so that the pair of pistons 26 will be shifted first in onedirection the factthat, in providing and 38, and attentionand then inthe other, as will also the pair of pistons 28. 4

At this point, it is to be noted that the major portion of the weight ofliquid in the chamber 68 of the head 61 will be sustained by the pistonhead 51 and as the valve 48 is free with respect to the shaft 43 asregards vertical movement, the valve will thus be relieved of thisweight. Consequently, the valve will not be unduly pressed against thevalve seat 15. Furthermore, it is to be noted that all of the liquidentering the meter is subsequently expelled in to the central chamber l3of the meter body I!) whence, as just previously described, the liquidflows out through the manifold passage and outlet 13. In thus arrangingthe inlet of the metervas well as the outlet thereof on the meter head,it has been found that a much better balanced device is provided. Thisconstruction is also of advantage in that the body l8 of the meter maybe detached from the head, leaving the head connected in a pipe lineengaged with the inlet 12 and outlet 13.

Thus, should inspection or repair become necessary,.the body may bedetached without disturbing the pipe line; A further advantage lies in vthe inlet and outlet upon the meter-head, a more compact device is hadand, in the present construction, this feature of compactness is furtheraccentuated by forming the pair of cylinders l2 to project within thelines of the pair of cylinders ll.

When the pairs of pistons 28 and 28 are reciprocated by the action ofliquid being measured, as just previously described, the yokes 31 and 38of the connecting rods 21 and 29 will act on the disks 98 of'the bearingroller of the crank pin 41, as will be readily appreciated, for turningthe crank and rotating the shaft 43. This shaft will thus be driven bythe reciprocation of the pistons for not only rotating the valve 48 butalso, as previously explained, rotating the shaft and thus actuating thecounter mechanism. Figure 1 of the drawings shows the bearing rollersupported by the screw 92 at the maximum elevation of the bearingroller. In this position of the bearing roller, the upper end portionthereof fits snugly within the slot of the yoke 31 while the lower endportion of the roller fits snugly within the slot of the yoke 38 so thatno slack motion can occur between the yokes and said roller. is thepairs of pistons are rigidly connected by the connecting rods, the throwof the pistons in this uppermost position of the bearing roller willaccordingly be limited to the effective length of the crank 46 so thatthe volume of the meter will be at a minimum.

By adjusting the screw 92 downwardly, however, the bearing roller willbe allowed to drop and in Figure 6 I have shown the roller adjusted to alowered position. In this lowered position of the bearing roller,it willbe seen that the peripheries of the disks 98 have been caused to recedefrom the side walls of the slots of the yokes 31 and 38 so that the sidewalls of said slots are out of contact with the roller and in thisconnection it should be observed that the slot of the yoke 39 issomewhat wider than the slot of the yoke 31 to conform to the taper ofthe roller so that the clearance introduced between the upper end of theroller and the walls of the slot 31 is the same as the clearanceintroduced between the lower portion of the roller and the side walls ofthe slot 38. Thus, when the pairs of pistons are reciprocated, slackmotion will be introduced between the yokes and the bearing roller. Alonger travel of the pistons in both directions will thus be providedwith a corresponding increase in the volume of the meter. When the screw92 isa djusted downwardly, the bearing roller will follow the screw downby gravity while, when the screw is adjusted upwardly, the bearingroller will be correspondingly lifted. I thus provide a constructionwherein a controlled slack motion is introduced into the throw of thepistons for varying the volume of the meter and tests have shown thatthe means employed for con-' trolling the slack motion is not onlysensitive but accurate in adjustment so that the volume of the meter maybe set to a nicety.

Having thus described the invention, I claim:

1. In a meter of the character described, a 1'0- tatable shaft having acrank pin, fluid actuated pistons for rotating said shaft, 2, connectingrod rigidly coupling the pistons with each other and provided with ayoke, a conical bearing roller for the pin coacting with the yoke, andmeans for linearly adjusting said roller for introducing slack motionbetween the roller and yoke where' by to vary the throw of the pistons.

2. In a meter of the character described, a rotatable shaft having acrank pin, an adjusting screw axially alined with said shaft, fluidactuated pistons for rotating the shaft, a connecting rod coupling thepistons with each other and provided with a yoke, and a conical rollerfor said pin coacting with the yoke and supported by said screw, thescrew being adjustable for shifting the roller endwise and introducingslack motion between the roller and yoke whereby to vary the throw ofthe pistons.

3. In a meter of the character described, a rtatable shaft having acrank pin, pairs of fluid actuated pistons for rotating said shaft, aconnecting rod rigidly coupling the pistons of each pair, said rodsbeing provided with yokes, a tapered bearing roller for the pin coactingwith said yokes, and means for adjusting the roller to introduce slackmotion between the roller and said yokes whereby to vary the throw ofsaid pairs of pistons. 7

4. In a meter of the character described, a rotatable shaft having acrank pin, fluid actuated pistons, a connecting rod coupling thepistons, a tapered bearing roller formed of a plurality of independentlyrotatable roller disks mounted on the crank pin and extending throughthe connecting rod, and means for adjusting the roller endwise tointroduce slack motion between the roller and the connecting rod wherebyto vary the throw of said fluid actuated means.

5. In a meter of the character described, a rotatable shaft, fluidactuated pistons, a connecting rod coupling said pistons and having ayoke intermediate its ends, said shaft having a crank extending throughsaid yoke, a slack motion device loose upon the crank and extendingthrough the yoke, and means acting upon the slack motion device forpositively adjusting the same longitudinally of the shaft through theyoke and varying the amount of slack motion.

6. In a meter of the character described, a rotatable shaft, fluidactuated pistons, a connecting rod coupling said pistons and having ayoke between its ends engaged about the shaft, a slack motion deviceloose upon the shaft and extending through the yoke, and means actingupon the slack motion device for effecting adjustment thereoflongitudinally of the shaft through the yoke to vary the amount of slackmotion and supporting the slack motion device in an adjusted position.

'7. In a meter of the character described, a rotatable shaft having acrank, fluid actuated pistons, a connecting rod coupling said pistonsand having a yoke between its ends engaged about the crank of saidshaft, a slack motion device loose upon the crank and extending throughsaid yoke, means directly engaging the slack motion device for adjustingthe slack motion device longitudinally of the crank through the yoke andsupporting the same in an adjusted position to vary the amount of slackmotion, and means for releasably securing the last mentioned means in aset position.

DONALD I-I. MCGOGY. [L. s.]

